Home / 12,571.22-17,350.72-8,322.36

Finding the Fourth Proportional to 12,571.22, 17,350.72 and 8,322.36

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Solution

The fourth proportional to 12,571.22, 17,350.72 and 8,322.36 is: 11,486.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.22 : 17,350.72 = 8,322.36 : x
  2. Step 2: Convert to fraction form
    12,571.22/17,350.72 = 8,322.36/x
  3. Step 3: Cross multiply
    12,571.22x = 17,350.72 × 8,322.36
  4. Step 4: Simplify right side
    12,571.22x = 144,398,938.10
  5. Step 5: Solve for x
    x = 144,398,938.10/12,571.22
  6. Step 6: Final answer
    x = 11,486.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.